diff options
author | Ton Roosendaal <ton@blender.org> | 2011-04-27 15:58:34 +0400 |
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committer | Ton Roosendaal <ton@blender.org> | 2011-04-27 15:58:34 +0400 |
commit | da376e0237517543aa21740ee2363234ee1c20ae (patch) | |
tree | 014a513ed8d0eccc5e54fef42347781e85bae56a /intern/cycles/kernel/osl/nodes/node_wood_texture.osl | |
parent | 693780074388111e7b9ef1c3825e462f398dc6c4 (diff) |
Cycles render engine, initial commit. This is the engine itself, blender modifications and build instructions will follow later.
Cycles uses code from some great open source projects, many thanks them:
* BVH building and traversal code from NVidia's "Understanding the Efficiency of Ray Traversal on GPUs":
http://code.google.com/p/understanding-the-efficiency-of-ray-traversal-on-gpus/
* Open Shading Language for a large part of the shading system:
http://code.google.com/p/openshadinglanguage/
* Blender for procedural textures and a few other nodes.
* Approximate Catmull Clark subdivision from NVidia Mesh tools:
http://code.google.com/p/nvidia-mesh-tools/
* Sobol direction vectors from:
http://web.maths.unsw.edu.au/~fkuo/sobol/
* Film response functions from:
http://www.cs.columbia.edu/CAVE/software/softlib/dorf.php
Diffstat (limited to 'intern/cycles/kernel/osl/nodes/node_wood_texture.osl')
-rw-r--r-- | intern/cycles/kernel/osl/nodes/node_wood_texture.osl | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/intern/cycles/kernel/osl/nodes/node_wood_texture.osl b/intern/cycles/kernel/osl/nodes/node_wood_texture.osl new file mode 100644 index 00000000000..f1d2e278597 --- /dev/null +++ b/intern/cycles/kernel/osl/nodes/node_wood_texture.osl @@ -0,0 +1,63 @@ +/* + * Copyright 2011, Blender Foundation. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software Foundation, + * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ + +#include "stdosl.h" +#include "node_texture.h" + +/* Wood */ + +float wood(point p, float size, string type, string wave, string basis, int hard, float turb) +{ + float x = p[0]; + float y = p[1]; + float z = p[2]; + + float result = 0.0; + + if(type == "Bands") { + result = noise_wave(wave, (x + y + z)*10.0); + } + else if(type == "Rings") { + result = noise_wave(wave, sqrt(x*x + y*y + z*z)*20.0); + } + else if (type == "Band Noise") { + float wi = turb*noise_basis_hard(p/size, basis, hard); + result = noise_wave(wave, (x + y + z)*10.0 + wi); + } + else if (type == "Ring Noise") { + float wi = turb*noise_basis_hard(p/size, basis, hard); + result = noise_wave(wave, sqrt(x*x + y*y + z*z)*20.0 + wi); + } + + return result; +} + +shader node_wood_texture( + string Type = "Bands", + string Wave = "Sine", + string Basis = "Perlin", + int Hard = 0, + float Size = 0.25, + float Turbulence = 5.0, + point Vector = P, + output float Fac = 0.0) +{ + float size = nonzero(Size, 1e-5); + Fac = wood(Vector, size, Type, Wave, Basis, Hard, Turbulence); +} + |